Chapatis are generally made from wheat flour.
Papadams are made from chick pea flour.

But if you can get hold of chick pea flour, you can make some delicious chick pea pancakes very easy:

sift chick pea flour into bowl
season with salt and pepper
add water till you have a texture like pancake batter
prepare like pancakes, but allow longer cooking time.

And, voilá, you have crêpes with a wonderfully nutty flavour.

And you can add spices, minced garlic, chopped herbs etc. to batter for variation.